White Cloud Electronic Cigarettes says that it is taking a major step toward moving its operations to the U.S. by basing production of its e-cigarette cartridges entirely in the U.S. from May 15.

The company described the move as “unorthodox” within the e-cigarette industry, which largely relies on China-based manufacturing.

“White Cloud already makes its e-liquid in the U.S. but wanted to move to U.S.-based cartridge manufacturing, as well,” the company said in a press note issued through PRNewswire.

“This was made possible by the development of the company’s new proprietary cartridge design, which allows for automated production rather than more traditional hand-filling techniques typically used by companies in China.”

“We take a lot of pride in the quality of our USA-made cartridges and e-liquid,” said Matthew Steingraber, a co-founder of White Cloud.

“By moving our cartridge filling to the U.S., we’re able to better ensure every one of our cartridges meets our standards for flavor, vapor and longevity.”